Plasmon-assisted photoelectron emission in a model cluster using time-dependent density functional theory and the time-dependent surface-flux method

• URL: http://arxiv.org/abs/2507.22709v2
• Date: Sun, 12 Oct 2025 12:30:57 GMT
• Title: Plasmon-assisted photoelectron emission in a model cluster using time-dependent density functional theory and the time-dependent surface-flux method
• Abstract summary: Photoelectron spectra are computed with the time-dependent surface-flux (t-SURFF) method.<n>We observe peaks that arise from long-lived plasmon oscillations and the associated electron emission occurring after the laser pulse.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate plasmon-assisted photoelectron emission using a one-dimensional time-dependent density-functional theory (TDDFT) model. Photoelectron spectra are computed with the time-dependent surface-flux (t-SURFF) method. In addition to the expected above-threshold ionization (ATI) comb, we observe peaks that arise from long-lived plasmon oscillations and the associated electron emission occurring after the laser pulse. We further analyze the positions of these peaks and their scaling behavior with the laser intensity.

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